Convert Grays per hour to Rads per hour

Convert Grays per hour (Gy/h) to Rads per hour (rad/h) instantly and accurately.

Grays per hour (Gy/h)
Rads per hour (rad/h)

Conversion Formula

rad/h = Gy/h × 100

About Grays per hour

The gray per hour (Gy/h) equals 1/3600 Gy/s ≈ 2.78×10⁻⁴ Gy/s. Used in radiation processing and source strength reporting: ¹³⁷Cs irradiator calibrations are expressed in Gy/h at a reference distance; IAEA food irradiation standards cite Gy/h for conveyor output; radiobiological experiments for cancer cell survival curves use Gy/h. 1 Gy/h = 100 rad/h = 1000 mGy/h.

About Rads per hour

The rad per hour (rad/h) equals 0.01 Gy/h ≈ 2.78×10⁻⁶ Gy/s. Standard unit on US emergency dosimetry instruments and civil defense survey meters; Chernobyl sarcophagus contact dose rates were hundreds of rad/h; criticality accident dosimetry and NRC incident reports continue to evaluate dose rates in rad/h. 1 rad/h = 0.01 Gy/h = 10 mGy/h.

Quick Reference Table

Grays per hour (Gy/h)Rads per hour (rad/h)
1 Gy/h100 rad/h
2 Gy/h200 rad/h
5 Gy/h500 rad/h
10 Gy/h1000 rad/h
25 Gy/h2500 rad/h
50 Gy/h5000 rad/h
100 Gy/h10000 rad/h

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